ufn

UFN − CUTEr tool to evaluate function value.

CALL UFN( N, X, F )

The UFN subroutine evaluates the value of the objective function of the problem decoded into OUTSDIF.d at the point X, in the case where the only possible constraints are bound constraints.

The arguments of UFN are as follows

N [in] - integer

the number of variables for the problem,

X [in] - real/double precision

an array which gives the current estimate of the solution of the problem,

F [out] - real/double precision

the value of the objective function evaluated at X.

I. Bongartz, A.R. Conn, N.I.M. Gould, D. Orban and Ph.L. Toint

CUTEr (and SifDec): A Constrained and Unconstrained Testing Environment, revisited, N.I.M. Gould, D. Orban and Ph.L. Toint, ACM TOMS, 29:4, pp.373-394, 2003.

CUTE: Constrained and Unconstrained Testing Environment, I. Bongartz, A.R. Conn, N.I.M. Gould and Ph.L. Toint, TOMS, 21:1, pp.123-160, 1995.

cfn(3M).